Discuss: Steel, Glass, Concrete, Wood—Do You Have a Preference?

For any project, building materials have a bearing on costs, structure, sustainability, durability, and aesthetics—to name but a few factors. From wood-clad homes that recede into the surrounding forest to glass cabins that provide 360-degree views, the end result can be radically different. What are your thoughts on each material, and do you have a favorite?